You may well be right, HolyJJ. But I think we might be nearing the point of Madison saturation, especially when factoring in how many "Ellusionist-rare" decks he's put his name on.
Let's see now... In no particular order...
Madison Dealers v1 (borderless), green
Madison Dealers v1 (borderless), red (rare)
Madison Dealers v2 (bordered), black
Madison Dealers v2 (bordered), red
Madison Gamblers (gaff deck for black Rounders and green Dealers v1)
Madison Rounders, white
Madison Rounders, brown
Madison Rounders, black (regular)
Madison Rounders, black (autographed [rare])
Madison Rounders, red (rare)
Madison Kings, white
Madison Kings, inverted (rare)
Madison Mini Rounders, black
Madison Hustlers, orange
Madison Hustlers, purple
The Lions Den
LTD, white (technically not a Madison deck, but it does have the Madison courts [rare])
The Gaff System (Artifice gaff cards co-developed by Madison)
EIGHTEEN decks, of which five are rare and not purchasable. I know of no one else with such a pasteboard legacy! And that doesn't include his first deck, the one he did with Theory11...